YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1904 | 45.95 | 56.45 | a | 64.66 | 67.97 | 67.73 | ----- | z | 88.06 | o | ----- | z | ----- | z | ----- | z | 52.21 | a | 48.10 | 57.58 | e | |||||
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.05 | 41.66 | 47.86 | j | ||
1914 | 48.36 | b | 39.70 | 42.30 | f | 49.84 | n | 60.33 | k | 79.75 | 81.39 | 79.92 | g | 75.03 | 64.32 | 54.43 | 42.21 | 60.65 | d | |||||||
1915 | 42.50 | a | 49.55 | 47.77 | 63.53 | a | 72.34 | c | 82.88 | a | 83.48 | a | 79.25 | a | 76.45 | a | 64.60 | 55.32 | 49.15 | a | 63.90 | |||||
1916 | 50.69 | 52.62 | 62.73 | 63.68 | 75.69 | 85.32 | 81.63 | 79.95 | 73.77 | 65.08 | 50.15 | 46.44 | 65.65 | |||||||||||||
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.08 | 80.47 | 82.29 | 75.18 | 68.35 | 53.66 | a | 45.19 | 68.89 | e | ||||||
1935 | 48.35 | a | 46.70 | 58.48 | 64.78 | 70.08 | a | 80.25 | 81.18 | 82.02 | a | 70.17 | a | 64.16 | 50.75 | 43.35 | a | 63.36 | ||||||||
1936 | 43.58 | 49.27 | a | 59.18 | 64.15 | 73.66 | 81.72 | 81.17 | a | 81.31 | 74.37 | 60.47 | a | 50.50 | 44.65 | r | 65.40 | a | ||||||||
1937 | ----- | z | 41.76 | c | 52.35 | a | ----- | z | 74.94 | 82.16 | a | 84.21 | 83.82 | 76.25 | 65.55 | a | 51.07 | a | 44.23 | a | 65.63 | b | ||||
1938 | 45.92 | a | 53.92 | b | 58.08 | a | 66.33 | a | 74.77 | 81.90 | 81.02 | 81.53 | 74.45 | 67.27 | 48.48 | 44.23 | c | 64.83 | ||||||||
1939 | 45.40 | 44.00 | 61.77 | 66.15 | 76.11 | 84.70 | 83.29 | 79.90 | 77.37 | 66.90 | 51.16 | a | 50.84 | 65.63 | ||||||||||||
1940 | 41.73 | a | 48.91 | 57.52 | 68.28 | 71.73 | a | 77.36 | a | 81.85 | 78.95 | a | 75.18 | 64.44 | 51.05 | 51.53 | a | 64.05 | ||||||||
1941 | 51.29 | c | 48.93 | a | 51.79 | 63.40 | 72.56 | 76.70 | 81.19 | 81.23 | 74.65 | 68.05 | a | 53.62 | 46.74 | 64.18 | ||||||||||
1942 | 42.05 | 47.00 | b | 52.97 | 64.60 | a | 73.23 | 80.27 | 83.76 | 80.38 | a | 72.20 | b | 64.10 | 55.82 | 49.32 | a | 63.81 | ||||||||
1943 | 45.81 | b | 51.71 | 54.80 | a | 69.45 | 73.45 | a | 81.63 | 83.00 | 87.08 | 74.82 | b | 63.58 | 51.29 | a | 42.22 | b | 64.90 | |||||||
1944 | 42.70 | a | 51.87 | b | 54.56 | 64.79 | a | 72.92 | 82.80 | 85.16 | 82.21 | 72.23 | 65.68 | 53.29 | b | 42.00 | 64.18 | |||||||||
1945 | 46.60 | 50.77 | b | 58.34 | 63.53 | 75.82 | ----- | z | 81.48 | 83.48 | 76.64 | a | 63.50 | c | 54.08 | 43.80 | a | 63.46 | a | |||||||
1946 | ----- | z | ----- | z | 58.18 | a | 69.50 | 73.18 | a | 83.70 | 85.60 | 85.47 | 79.71 | a | 70.62 | a | 51.93 | b | 48.45 | b | 70.63 | b | ||||
1947 | 41.06 | d | 44.54 | 53.60 | 66.15 | d | 74.37 | 84.50 | 86.15 | n | 83.77 | 78.47 | 71.76 | 51.02 | 44.82 | 63.10 | a | |||||||||
1948 | 39.23 | a | 48.54 | a | 53.85 | a | 71.85 | 78.19 | 86.77 | 86.60 | 85.47 | 77.07 | 65.20 | c | 50.18 | 50.52 | 66.12 | |||||||||
1949 | 38.03 | 49.04 | c | 58.45 | 62.18 | 77.08 | 83.63 | 86.13 | 82.10 | 77.67 | 64.39 | c | 57.07 | 45.81 | 65.13 | |||||||||||
1950 | 50.34 | 53.96 | 59.58 | a | 66.48 | 75.26 | 84.17 | 84.23 | 83.95 | 76.78 | 70.11 | 52.98 | 47.70 | a | 67.13 | |||||||||||
1951 | 43.08 | 48.55 | 55.68 | a | 66.43 | 76.58 | a | 87.77 | b | 91.10 | 86.32 | 80.66 | b | 71.57 | b | 52.90 | a | 51.12 | c | 67.65 | ||||||
1952 | 50.82 | c | 50.75 | a | 56.31 | 70.25 | h | ----- | z | 86.46 | f | 83.21 | c | 85.82 | 73.53 | 61.78 | a | ----- | z | ----- | z | 66.03 | e | |||
1953 | ----- | z | 45.02 | c | 56.68 | ----- | z | 73.15 | 87.07 | 86.77 | 84.13 | 78.02 | c | 65.55 | 53.37 | 41.03 | 67.08 | b | ||||||||
1954 | 47.61 | 52.23 | 56.35 | 68.05 | 71.52 | 82.25 | 85.47 | 84.00 | 80.43 | 67.03 | 53.45 | a | 46.30 | c | 66.23 | |||||||||||
1955 | 42.19 | 46.74 | a | 56.88 | a | 66.58 | 74.60 | 80.85 | 82.52 | 82.39 | 77.93 | 66.02 | 53.20 | 47.39 | 64.77 | |||||||||||
1956 | 45.77 | 45.91 | 57.58 | 63.85 | 77.98 | 86.08 | 85.84 | 83.40 | 77.55 | 69.58 | 49.72 | 47.31 | 65.88 | |||||||||||||
1957 | 46.60 | a | 56.18 | 58.08 | 62.88 | 72.52 | 82.83 | 87.05 | 85.31 | 75.90 | 63.84 | 49.77 | 48.21 | 65.76 | ||||||||||||
1958 | 42.47 | 47.88 | 51.00 | 64.27 | 74.40 | 85.12 | 87.52 | 83.95 | 78.28 | 63.56 | 53.22 | 44.18 | 64.65 | |||||||||||||
1959 | 42.76 | 47.96 | 54.60 | 63.72 | 76.16 | 82.88 | 82.31 | 84.34 | 78.10 | 64.82 | 47.25 | 46.05 | 64.25 | |||||||||||||
1960 | 42.55 | 44.93 | 52.69 | 65.97 | 73.16 | 84.53 | 82.15 | 82.00 | 76.05 | 66.60 | 54.07 | 40.20 | a | 63.74 | ||||||||||||
1961 | 40.16 | 48.62 | 55.53 | 64.03 | 75.13 | 80.77 | 81.29 | 80.97 | 76.52 | b | 66.40 | 49.22 | 45.57 | a | 63.68 | |||||||||||
1962 | 39.24 | 55.12 | 53.52 | a | 67.57 | 78.68 | 82.67 | 84.84 | 85.47 | 77.88 | 68.37 | 55.52 | 46.71 | 66.30 | ||||||||||||
1963 | 41.32 | a | 50.75 | 58.13 | 70.28 | 77.88 | a | 82.72 | 86.77 | 83.21 | 76.53 | 68.87 | 53.85 | 39.66 | 65.83 | |||||||||||
1964 | 41.35 | 43.38 | 56.75 | a | 65.67 | 76.82 | 82.73 | 86.16 | 85.13 | 75.58 | 64.55 | 54.45 | a | 46.68 | 64.94 | |||||||||||
1965 | 48.23 | 45.21 | 50.69 | 69.58 | 75.57 | a | 82.42 | 85.55 | 81.60 | 78.65 | 65.69 | ----- | z | 49.50 | 66.61 | a | ||||||||||
1966 | 40.40 | 43.95 | 57.82 | 65.70 | 74.39 | 81.43 | 87.31 | 81.42 | 77.32 | 62.31 | 58.40 | 44.23 | 64.56 | |||||||||||||
1967 | 44.03 | 49.30 | 62.42 | 72.70 | 73.10 | 82.22 | 84.03 | 81.19 | 73.75 | 65.66 | 55.32 | 43.25 | a | 65.58 | ||||||||||||
1968 | 44.60 | 47.45 | 53.65 | 65.17 | 74.76 | 82.16 | a | 81.61 | c | 82.17 | a | 73.95 | a | 65.66 | 51.28 | 45.62 | a | 64.00 | ||||||||
1969 | 47.45 | a | 50.89 | a | 48.98 | 67.28 | c | 74.08 | a | 80.32 | 85.71 | 84.85 | a | 77.18 | 63.85 | 51.67 | 48.40 | 65.06 | ||||||||
1970 | 43.37 | 48.59 | 52.16 | 64.65 | 71.94 | 79.90 | 82.89 | 83.02 | c | 76.27 | 60.65 | 52.40 | 50.24 | 63.84 | ||||||||||||
1971 | 48.77 | 48.57 | 57.58 | 65.02 | 73.21 | 81.58 | 83.39 | 78.05 | 74.90 | 65.98 | 56.00 | 47.97 | 65.09 | |||||||||||||
1972 | 46.94 | 50.00 | 62.55 | 69.55 | b | 73.21 | 80.93 | 82.97 | 79.92 | 78.62 | 66.98 | 49.57 | 44.71 | 65.50 | ||||||||||||
1973 | 40.87 | 45.34 | 56.98 | 60.36 | a | 71.84 | 80.85 | 82.03 | 82.05 | 74.92 | 66.73 | 57.42 | 46.47 | 63.82 | ||||||||||||
1974 | 44.60 | 49.52 | 63.63 | 68.18 | 76.68 | 82.43 | 84.31 | 79.74 | d | 68.82 | 65.53 | 52.30 | 45.08 | 65.07 | ||||||||||||
1975 | 45.98 | 49.50 | 55.44 | 62.82 | 71.19 | 82.07 | 79.74 | 81.56 | 72.03 | 65.66 | 53.43 | 46.03 | 63.79 | |||||||||||||
1976 | 43.63 | 55.32 | a | 57.95 | 66.03 | 69.53 | 82.42 | 81.16 | 82.60 | 73.95 | 59.45 | 46.32 | 42.55 | 63.41 | ||||||||||||
1977 | 41.23 | 50.18 | 55.37 | 66.28 | 76.23 | 83.90 | 85.44 | 87.63 | 82.13 | 66.94 | 54.00 | 50.26 | 66.63 | |||||||||||||
1978 | 41.42 | 44.07 | 57.82 | 69.82 | 75.77 | 83.58 | 85.31 | 81.87 | 74.27 | 64.42 | 54.52 | 45.31 | 64.85 | |||||||||||||
1979 | 38.71 | 46.20 | 55.35 | a | 65.47 | 71.45 | 77.98 | 84.48 | 79.65 | 75.22 | 67.60 | 49.28 | 45.32 | 63.06 | ||||||||||||
1980 | 47.06 | 48.97 | 55.85 | 62.00 | 72.32 | 85.52 | 87.48 | 83.65 | 77.23 | 62.81 | 49.13 | 47.98 | 65.00 | |||||||||||||
1981 | 45.21 | 50.04 | 54.74 | 66.17 | 71.82 | 81.02 | 84.66 | 79.61 | 75.35 | 65.79 | 56.42 | 49.60 | 65.04 | |||||||||||||
1982 | 45.87 | 47.27 | b | 59.06 | 66.25 | 73.05 | 81.00 | a | 85.18 | 84.84 | 79.67 | 65.50 | a | 53.47 | 44.48 | 65.47 | ||||||||||
1983 | 43.69 | 49.45 | 58.02 | 60.72 | 73.34 | 79.58 | 86.08 | 85.06 | 80.23 | 68.84 | 57.20 | 39.50 | 65.14 | |||||||||||||
1984 | 40.82 | 49.33 | 57.16 | 65.15 | 76.03 | 80.78 | 83.48 | 82.27 | 73.75 | 62.85 | 52.68 | 48.27 | 64.38 | |||||||||||||
1985 | 40.42 | 44.96 | 59.61 | 67.93 | 76.10 | 79.98 | 82.98 | 84.82 | 77.08 | 64.40 | 56.63 | 43.35 | 64.86 | |||||||||||||
1986 | 46.40 | 52.52 | 60.00 | 70.57 | 73.61 | 80.22 | 83.26 | 82.53 | 76.13 | 63.32 | 51.25 | 43.81 | 65.30 | |||||||||||||
1987 | 43.40 | 48.77 | 51.13 | 59.36 | a | 71.34 | 78.28 | 82.85 | 82.71 | 73.78 | 67.26 | 52.72 | 44.52 | 63.01 | ||||||||||||
1988 | 40.21 | 48.25 | a | 54.79 | 63.95 | 73.58 | 79.82 | 81.65 | 81.58 | 74.38 | 66.19 | 55.90 | 44.06 | 63.70 | ||||||||||||
1989 | 45.68 | 47.77 | 57.89 | 67.55 | a | 75.97 | 80.97 | 83.95 | 81.87 | 73.15 | 66.73 | 54.40 | 39.97 | 64.66 | ||||||||||||
1990 | 46.06 | 50.68 | 55.53 | 65.43 | 72.79 | 87.15 | 80.03 | 77.50 | 75.33 | 63.76 | 55.85 | 44.89 | 64.58 | |||||||||||||
1991 | 42.11 | 51.30 | 58.19 | 64.98 | 75.98 | 81.52 | 80.02 | 80.24 | 70.30 | 65.16 | 48.97 | 45.29 | 63.67 | |||||||||||||
1992 | 43.06 | 50.28 | 57.76 | 64.18 | 70.24 | 78.38 | 82.47 | 80.35 | 76.88 | 66.44 | 49.23 | 46.39 | 63.81 | |||||||||||||
1993 | 45.74 | 48.57 | 56.27 | 64.72 | 72.71 | 81.90 | 83.95 | 84.10 | 74.92 | 63.60 | 50.05 | 47.35 | 64.49 | |||||||||||||
1994 | 45.29 | 49.30 | 58.65 | 65.03 | 74.02 | 85.68 | 85.40 | 84.03 | 75.40 | 66.63 | 56.88 | 48.97 | 66.27 | |||||||||||||
1995 | 46.65 | 54.38 | 56.92 | 63.90 | 73.98 | 80.67 | 84.24 | 83.74 | 74.90 | 66.32 | 55.42 | 47.18 | 65.69 | |||||||||||||
1996 | 45.48 | 51.19 | 51.74 | 64.07 | 79.97 | 84.12 | 84.79 | 81.29 | 73.73 | 64.81 | 54.18 | 47.60 | 65.25 | |||||||||||||
1997 | 43.27 | 46.50 | 57.88 | a | 59.83 | 72.65 | 79.98 | 84.60 | 82.69 | 77.88 | 65.76 | 51.50 | 43.11 | 63.81 | ||||||||||||
1998 | 49.06 | 50.89 | 55.23 | 62.68 | 77.53 | 85.52 | 87.00 | 82.31 | 79.98 | 68.24 | 56.85 | 45.15 | 66.70 | |||||||||||||
1999 | 48.79 | 53.84 | 57.15 | 65.97 | 74.29 | 82.81 | d | 84.66 | i | 85.35 | d | 77.85 | j | ----- | z | ----- | z | ----- | z | 66.88 | e | |||||
2000 | ----- | z | ----- | z | ----- | z | ----- | z | 81.14 | b | 81.81 | a | 87.35 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 83.43 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.39 | 48.99 | 56.48 | 65.62 | 74.22 | 82.15 | 83.93 | 82.62 | 75.93 | 65.65 | 52.86 | 45.81 | 64.86 | |||||||||||||
S.D. | 3.19 | 3.38 | 3.32 | 2.74 | 2.45 | 2.44 | 2.26 | 2.16 | 2.55 | 2.40 | 2.68 | 2.89 | 1.03 | |||||||||||||
SKEW | 0.17 | -0.08 | -0.09 | 0.23 | 0.24 | 0.13 | 0.35 | -0.03 | -0.18 | 0.16 | -0.13 | -0.16 | 0.43 | |||||||||||||
MAX | 51.29 | 56.45 | 64.66 | 72.70 | 81.14 | 87.77 | 91.10 | 87.63 | 82.13 | 71.76 | 58.40 | 51.53 | 67.65 | |||||||||||||
MIN | 38.03 | 39.70 | 47.77 | 59.36 | 67.73 | 76.70 | 79.74 | 77.50 | 68.82 | 59.45 | 46.32 | 39.50 | 63.01 | |||||||||||||
YRS | 66 | 68 | 68 | 65 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 58 |